Grid (un) locked is a challenge based on a this post of Rick and Maria. What's the idea. You have some squares with a base pattern. With one of these squares you build a grid in a space in your tile. By turning de squares or just not and drawing in each square of the grid the pattern you can achieve a great result. It is a great way of looking at grids. And it reminds a lot of the pattern Tripoli. The approach is the same a simple base putting together getting a very amazing drawing.For my tile I have chosen C1. I had a lot of fun doing it this way, and I think I will use it more. Thanks Laura, Rick and Maria for letting me explore this. Have a nice Weekend...